[touch] apport hook crashes with: from xdg.BaseDirectory import xdg_cache_home ImportError: No module named 'xdg'

mako 20130929

TEST CASE:
1. From aterminal run the command:
  $ ubuntu-bug indicator-network

EXPECTED RESULT:
It collects system information required by the hook

ACTUAL RESULT:
Reporting proceeds but the hook fails with

ERROR: hook /usr/share/apport/package-hooks/source_indicator-network.py crashed:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport/report.py", line 195, in _run_hook
    exec(compile(fd.read(), hook, 'exec'), symb)
  File "/usr/share/apport/package-hooks/source_indicator-network.py", line 3, in <module>
    from xdg.BaseDirectory import xdg_cache_home
ImportError: No module named 'xdg'

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: indicator-network 0.5.0+13.10.20130918-0ubuntu1
Uname: Linux 3.4.0-3-mako armv7l
ApportVersion: 2.12.5-0ubuntu1
Architecture: armhf
Date: Mon Sep 30 12:33:05 2013
InstallationDate: Installed on 2013-09-29 (1 days ago)
InstallationMedia: Ubuntu Saucy Salamander (development branch) - armhf (20130929)
MarkForUpload: True
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
SourcePackage: indicator-network
UpgradeStatus: No upgrade log present (probably fresh install)